Linux IP Masquerade HOWTO
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7.24. ( SETSOCKOPT ) - I'm getting "ipfwadm: setsockopt failed: Protocol not available" when I try to use IPPORTFW!

If you get the error message "ipfwadm: setsockopt failed: Protocol not available", you AREN'T running your new kernel. Make sure that you moved the new kernel over, re-run LILO, and then reboot again.

Please see the end of Section 6.7 for full details.

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( Free Ports ) - I'm getting "kernel: ip_masq_new(proto=UDP): no free ports." in my SYSLOG files. Whats up?Up( SAMBA ) - Microsoft File and Print Sharing and Microsoft Domain clients don't work through IP Masq!